{"id":"CVE-2026-93242","revision":"afc0871132e64e2fae68bfa0b2f85411","records":[{"revision":"afc0871132e64e2fae68bfa0b2f85411","observedAt":"2026-10-23T15:48:27.903+00:00","statement":{"source":"cve-program","id":"CVE-2026-93242","aliases":[],"title":"scsi: qla2xxx: Fix response queue over-consumption in __qla_consume_iocb()","description":"In the Linux kernel, the following vulnerability has been resolved:\n\nscsi: qla2xxx: Fix response queue over-consumption in __qla_consume_iocb()\n\nqla24xx_process_response_queue() advances ring_ptr past the head IOCB\nbefore dispatching, so by the time __qla_consume_iocb() runs, ring_ptr\nalready points at the first continuation IOCB. The function however\nlooped purex->entry_count times starting at ring_ptr. As entry_count\nincludes the head, this consumed one entry too many: it stamped\nRESPONSE_PROCESSED on the next, unrelated IOCB and advanced the ring\npast it, silently dropping a legitimate firmware response. The head\nIOCB's signature was also never marked.\n\nMark the head processed and account for it, then consume only the\nentry_count - 1 continuation IOCBs, matching __qla_copy_purex_to_buffer().","state":0,"publishedAt":"2026-09-24T15:40:26.57+00:00","modifiedAt":"2026-10-19T09:07:53.904+00:00","affected":[{"ecosystem":"Vendor product","name":"Linux","ranges":[],"versions":[],"rawVersionEvidence":"{\n                    \"product\": \"Linux\",\n                    \"vendor\": \"Linux\",\n                    \"defaultStatus\": \"unaffected\",\n                    \"repo\": \"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git\",\n                    \"programFiles\": [\n                        \"drivers/scsi/qla2xxx/qla_isr.c\"\n                    ],\n                    \"versions\": [\n                        {\n                            \"version\": \"fac2807946c10b9a509b9c348afd442fa823c5f7\",\n                            \"lessThan\": \"a136c311676fd1010b1bde3bcfd410caa2fa040f\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        },\n                        {\n                            \"version\": \"fac2807946c10b9a509b9c348afd442fa823c5f7\",\n                            \"lessThan\": \"d841707fafba5f80341b82e8c3a4c24fc5aa5132\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        },\n                        {\n                            \"version\": \"fac2807946c10b9a509b9c348afd442fa823c5f7\",\n                            \"lessThan\": \"6e3f129538c32d0019437197735912308c161843\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        },\n                        {\n                            \"version\": \"fac2807946c10b9a509b9c348afd442fa823c5f7\",\n                            \"lessThan\": \"bd1534d4afab47f13dfc27fff6f59dd859a0ac3a\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        },\n                        {\n                            \"version\": \"fac2807946c10b9a509b9c348afd442fa823c5f7\",\n                            \"lessThan\": \"31715d1e1cbf3a37ce3452635c5602f73fd7abd4\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        },\n                        {\n                            \"version\": \"fac2807946c10b9a509b9c348afd442fa823c5f7\",\n                            \"lessThan\": \"df86c27cf1ba9d66f737a1fa56479c6e7efafe4e\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        },\n                        {\n                            \"version\": \"fac2807946c10b9a509b9c348afd442fa823c5f7\",\n                            \"lessThan\": \"3ba019bdd89d931499d9476456b5d9c7ab7fa753\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        }\n                    ]\n                }"},{"ecosystem":"Vendor product","name":"Linux","ranges":[],"versions":[],"rawVersionEvidence":"{\n                    \"product\": \"Linux\",\n                    \"vendor\": \"Linux\",\n                    \"defaultStatus\": \"affected\",\n                    \"repo\": \"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git\",\n                    \"programFiles\": [\n                        \"drivers/scsi/qla2xxx/qla_isr.c\"\n                    ],\n                    \"versions\": [\n                        {\n                            \"version\": \"5.15\",\n                            \"status\": \"affected\"\n                        },\n                        {\n                            \"version\": \"0\",\n                            \"lessThan\": \"5.15\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"5.15.221\",\n                            \"lessThanOrEqual\": \"5.15.*\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"6.1.188\",\n                            \"lessThanOrEqual\": \"6.1.*\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"6.6.157\",\n                            \"lessThanOrEqual\": \"6.6.*\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"6.12.110\",\n                            \"lessThanOrEqual\": \"6.12.*\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"6.18.51\",\n                            \"lessThanOrEqual\": \"6.18.*\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"7.2.5\",\n                            \"lessThanOrEqual\": \"7.2.*\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"7.3\",\n                            \"lessThanOrEqual\": \"*\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"original_commit_for_fix\"\n                        }\n                    ]\n                }"}],"metrics":[],"references":["https://git.kernel.org/stable/c/a136c311676fd1010b1bde3bcfd410caa2fa040f","https://git.kernel.org/stable/c/d841707fafba5f80341b82e8c3a4c24fc5aa5132","https://git.kernel.org/stable/c/6e3f129538c32d0019437197735912308c161843","https://git.kernel.org/stable/c/bd1534d4afab47f13dfc27fff6f59dd859a0ac3a","https://git.kernel.org/stable/c/31715d1e1cbf3a37ce3452635c5602f73fd7abd4","https://git.kernel.org/stable/c/df86c27cf1ba9d66f737a1fa56479c6e7efafe4e","https://git.kernel.org/stable/c/3ba019bdd89d931499d9476456b5d9c7ab7fa753"],"sourceUrl":"https://www.cve.org/CVERecord?id=CVE-2026-93242","license":"CVE Program Terms of Use","key":"cve-program:CVE-2026-93242","identifiers":["CVE-2026-93242"]},"retained":false,"historicalAffected":[]}],"coverage":[]}